121451502342 has 8 divisors (see below), whose sum is σ = 242903004696. Its totient is φ = 40483834112.

The previous prime is 121451502317. The next prime is 121451502373. The reversal of 121451502342 is 243205154121.

It is a sphenic number, since it is the product of 3 distinct primes.

121451502342 is an admirable number.

It is a super-2 number, since 2×121451502342² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10120958523 + ... + 10120958534.

It is an arithmetic number, because the mean of its divisors is an integer number (30362875587).

Almost surely, 2^121451502342 is an apocalyptic number.

121451502342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121451502342 is a wasteful number, since it uses less digits than its factorization.

121451502342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20241917062.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 121451502342 its reverse (243205154121), we get a palindrome (364656656463).

The spelling of 121451502342 in words is "one hundred twenty-one billion, four hundred fifty-one million, five hundred two thousand, three hundred forty-two".